/* ---------- Minimal prototype stylesheet ---------- */

:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #757575;
  --line: #e6e6e6;
  --accent: #1a1a1a;
  --maxw: 640px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e0e;
    --fg: #e8e8e8;
    --muted: #8a8a8a;
    --line: #262626;
    --accent: #ffffff;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 5rem 1.5rem 6rem;
}

.wrap.wide { max-width: calc(var(--maxw) * 1.3); }

/* ---------- Master–detail layout ---------- */
.layout {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 3.5rem;
  max-width: 1440px;
  margin: 0 auto;
  transition: gap .35s ease;
}
/* flex-grow 0 keeps it capped at 640 and centered on wide screens;
   flex-shrink 1 + min-width 0 lets it shrink below 640 on phones (no h-overflow) */
.layout .wrap { margin: 0; flex: 0 1 var(--maxw); min-width: 0; }

.detail {
  flex: 0 0 0;
  width: 0;
  max-width: 728px;
  opacity: 0;
  overflow: hidden;
  position: sticky;
  top: 0;
  max-height: 100vh;
  /* hidden when closed so its controls leave the tab order + a11y tree */
  visibility: hidden;
  transition: flex-basis .35s ease, width .35s ease, opacity .25s ease, visibility 0s linear .35s;
}
body.detail-open .detail {
  flex: 0 1 728px;
  width: 728px;
  opacity: 1;
  visibility: visible;
  border-left: 1px solid var(--line);
  transition: flex-basis .35s ease, width .35s ease, opacity .25s ease, visibility 0s;
}
/* an inner element does the scrolling, so the close button (in .detail) is never faded */
.detail-scroll {
  max-height: 100vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 5rem 1.5rem 6rem;
}
.detail-close {
  position: absolute;
  top: 3.5rem; right: 1rem;
  z-index: 2;                       /* stay above the scrolling content */
  display: flex; align-items: center; justify-content: center;
  width: 2.1rem; height: 2.1rem; padding: 0;
  background: none; border: none; border-radius: 50%;
  font-size: 1.4rem; line-height: 1;
  color: var(--muted); cursor: pointer;
  transition: color .15s ease, background-color .15s ease;
}
.detail-close:hover { color: var(--fg); background: var(--line); }
.detail-close:focus { outline: none; }                                  /* no ring on mouse/auto-focus */
.detail-close:focus-visible { color: var(--fg); box-shadow: 0 0 0 2px var(--muted); }  /* keyboard ring */
.detail-body h1 { font-size: 1.7rem; margin-bottom: 0.5rem; }
.detail-body .meta { color: var(--muted); font-family: var(--mono); font-size: 0.85rem; margin-bottom: 2rem; }
.detail-body p, .detail-body li { line-height: 1.75; }
.detail-body code {
  font-family: var(--mono); font-size: 0.85em;
  background: var(--line); padding: 0.1em 0.35em; border-radius: 4px;
}
.detail-body pre {
  background: var(--line); padding: 1rem; border-radius: 6px;
  overflow-x: auto; font-size: 0.85rem;
}
.detail-body pre code { background: none; padding: 0; }
.detail-body img { max-width: 100%; height: auto; border-radius: 6px; margin: 0.5rem 0; }
.detail-body h2 { font-size: 1.05rem; margin: 2rem 0 0.75rem; }
.detail-body ul, .detail-body ol { padding-left: 1.2rem; }
.detail-body li { margin-bottom: 0.4rem; }
.detail-body blockquote {
  margin: 1.25rem 0; padding-left: 1rem;
  border-left: 2px solid var(--line); color: var(--muted);
}

/* On narrow screens the detail panel overlays full-screen */
@media (max-width: 1240px) {
  body.detail-open .detail {
    position: fixed; inset: 0; z-index: 50;
    width: 100%; max-width: 100%; flex-basis: 100%;
    background: var(--bg); border-left: none;
    margin: 0 auto;
  }
  .detail-scroll { padding: 4rem 1.5rem 6rem; }
  .detail-body { max-width: var(--maxw); margin: 0 auto; }
  .detail-close { right: 1.2rem; }
}

/* ---------- Scrollable list ---------- */
.post-list.scroll {
  max-height: 320px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

/* ---------- Fade-edge scroll: no visible bar, soft fade at the scrolled edge ---------- */
/* --fade-top / --fade-bottom are toggled between 0 and the fade size by JS,
   depending on whether there is more content above / below the viewport. */
.fade-scroll {
  scrollbar-width: none;              /* Firefox: hide bar */
  -webkit-mask-image: linear-gradient(to bottom,
    transparent 0, #000 var(--fade-top, 0px),
    #000 calc(100% - var(--fade-bottom, 0px)), transparent 100%);
          mask-image: linear-gradient(to bottom,
    transparent 0, #000 var(--fade-top, 0px),
    #000 calc(100% - var(--fade-bottom, 0px)), transparent 100%);
}
.fade-scroll::-webkit-scrollbar { width: 0; height: 0; }   /* WebKit: hide bar */

/* Embedded widget (e.g. music player) inside the detail panel */
.panel-embed {
  width: 100%;
  height: 460px;
  border: none;
  display: block;
  margin-top: 1.5rem;
}

/* ---------- Top nav ---------- */
nav.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4rem;
  font-size: 0.9rem;
}
nav.top .name { font-weight: 600; letter-spacing: 0; }
nav.top .links a {
  margin-left: 1.25rem;
  color: var(--muted);
}
nav.top .links a:hover { color: var(--fg); }

/* ---------- Typography ---------- */
h1 { font-size: 1.6rem; font-weight: 600; margin: 0 0 0.4rem; letter-spacing: -0.02em; }
h2 { font-size: 1.05rem; font-weight: 600; margin: 3.5rem 0 1rem; }
p  { margin: 0 0 1.1rem; }

a { color: var(--fg); text-decoration: none; border-bottom: 1px solid var(--line); transition: border-color .15s; }
a:hover { border-color: var(--fg); }
nav.top a, .icons a, .post-list a { border-bottom: none; }

.lead { color: var(--muted); margin-bottom: 2.5rem; }

/* ---------- Intro ---------- */
.intro { display: flex; align-items: center; gap: 1.1rem; margin-bottom: 2rem; }
.intro img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; }
.intro .role { color: var(--muted); font-size: 0.95rem; }

/* ---------- Social icons ---------- */
.icons { display: flex; gap: 1.1rem; list-style: none; padding: 0; margin: 1.5rem 0 0; }
.icons a { color: var(--muted); font-size: 1.1rem; }
.icons a:hover { color: var(--fg); }

/* ---------- Lists (projects + posts) ---------- */
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li { border-bottom: 1px solid var(--line); }
.post-list li:first-child { border-top: 1px solid var(--line); }
.post-list a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.85rem 0;
}
.post-list a > span:first-child { display: flex; flex-direction: column; min-width: 0; }
.post-list a:hover .title { text-decoration: underline; text-underline-offset: 2px; }
.post-list .title { font-weight: 500; }
.post-list .desc { color: var(--muted); font-size: 0.9rem; margin-top: 0.15rem; font-weight: 400; }
.post-list .date { color: var(--muted); font-size: 0.85rem; font-family: var(--mono); white-space: nowrap; }
.post-list .ext { font-size: 0.75rem; color: var(--muted); }

/* Project list: title and tag grouped on the left, description below */
.worklist a { justify-content: flex-start; }
.worklist .titlerow { display: flex; align-items: baseline; flex-wrap: wrap; gap: 0.2rem 0.6rem; }
.worklist .tag {
  color: var(--muted); font-family: var(--mono);
  font-size: 0.76rem; letter-spacing: 0; white-space: nowrap;
}

/* ---------- Article (blog post) ---------- */
article { }
article .meta { color: var(--muted); font-family: var(--mono); font-size: 0.85rem; margin-bottom: 2.5rem; }
article h1 { font-size: 1.9rem; margin-bottom: 0.6rem; line-height: 1.25; }
article p, article li { line-height: 1.75; }
article blockquote {
  margin: 1.5rem 0; padding-left: 1rem;
  border-left: 2px solid var(--line); color: var(--muted);
}
article code {
  font-family: var(--mono); font-size: 0.85em;
  background: var(--line); padding: 0.1em 0.35em; border-radius: 4px;
}
article img { max-width: 100%; border-radius: 6px; }

.back { display: inline-block; margin-bottom: 3rem; color: var(--muted); font-size: 0.9rem; }

/* ---------- CV page ---------- */
.cv-top {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 2.5rem;
}
.cv-top .back { margin-bottom: 0; }
.pdf-link { font-size: 0.9rem; }
.cv h1 { font-size: 1.9rem; margin-bottom: 0.4rem; }
.cv h1 + p { color: var(--muted); }           /* the role/tagline line under the name */
.cv h2 {
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); font-weight: 600;
  margin: 2.5rem 0 1rem; padding-bottom: 0.4rem; border-bottom: 1px solid var(--line);
}
.cv h3 { font-size: 1rem; font-weight: 600; margin: 1.4rem 0 0.3rem; }
.cv p { margin: 0 0 0.9rem; }
.cv ul { padding-left: 1.1rem; margin: 0.4rem 0 1rem; }
.cv li { line-height: 1.6; margin-bottom: 0.3rem; }

footer {
  margin-top: 5rem; padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: 0.85rem;
}